EP 4144488 A4 20231101 - BIASING UNIT AND LUMBAR ASSISTANCE DEVICE
Title (en)
BIASING UNIT AND LUMBAR ASSISTANCE DEVICE
Title (de)
VORSPANNUNGSEINHEIT UND LENDENSTÜTZVORRICHTUNG
Title (fr)
UNITÉ DE SOLLICITATION ET DISPOSITIF D'ASSISTANCE LOMBAIRE
Publication
Application
Priority
- JP 2020094882 A 20200529
- JP 2021019922 W 20210526
Abstract (en)
[origin: EP4144488A1] The present invention achieves a size reduction of a lumbar assistance device. A biasing unit 2 comprises: a base member 20; a downward swing member 21 which is attached to a lower section of a base member 20 and swings back and forth with respect to the base member 20 integrally with a thigh support member 3; a tension spring 22, one end of which is attached to the base member 20, another end of which is attached to the downward swing member 21, and which biases the downward swing member 21 rearward when the downward swing member 21 has swung forward; an upward swing member 23 which is attached to an upper section of the base member 20 and swings back and forth with respect to the base member 20 integrally with an upper body support member 4; and a gas spring 24, one end of which is attached to the base member 20, another end of which is attached to the upward swing member 23, and which biases the upward swing member 23 rearward when the upward swing member 23 has swung forward.
IPC 8 full level
B25J 11/00 (2006.01)
CPC (source: EP KR US)
B25J 9/0006 (2013.01 - EP KR US); B25J 9/1045 (2013.01 - US); B25J 9/106 (2013.01 - KR)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 2021241614A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4144488 A1 20230308; EP 4144488 A4 20231101; CN 115666876 A 20230131; JP WO2021241614 A1 20211202; KR 20230017848 A 20230206; US 2023264344 A1 20230824; WO 2021241614 A1 20211202
DOCDB simple family (application)
EP 21812956 A 20210526; CN 202180037939 A 20210526; JP 2021019922 W 20210526; JP 2022526601 A 20210526; KR 20227045811 A 20210526; US 202117999908 A 20210526